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Senior Python Developer Jobs in New Castle, DE (NOW HIRING)

No Limit Technology

Software Developer

Wilmington, DE · On-site

\n \n \n Senior Developer \- We are seeking a skilled and motivated individual to join our credit ... Five years of programming experience (JavaScript, Python etc.) and a strong fundamental ...

Aespatech

Sr. Support Engineer

Wilmington, DE · On-site

Job Title: Sr. Support Engineer - Discovery Location: Wilmington, DE Type: Contract The AWS ... Python) 3) Amazon Web Services (specifically EC2, S3 and AutoScaling) 4) Sun Grid Engine 5) ...

Aespatech

Sr. Support Engineer

Wilmington, DE · On-site

Job Title: Sr. Support Engineer - Discovery Location: Wilmington, DE Type: Contract The AWS ... Python) 3) Amazon Web Services (specifically EC2, S3 and AutoScaling) 4) Sun Grid Engine 5) ...

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All JobsSenior Python Developer JobsSenior Python Developer Jobs in New Castle, DE

Senior Python Developer information

See New Castle, DE salary details

$53.3K

$137.7K

$189.1K

How much do senior python developer jobs pay per year?

As of Jun 22, 2026, the average yearly pay for senior python developer in New Castle, DE is $137,676.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,800.00 and $158,500.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

What are the key skills and qualifications needed to thrive as a Senior Python Developer, and why are they important?

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
What job categories do people searching Senior Python Developer jobs in New Castle, DE look for? The top searched job categories for Senior Python Developer jobs in New Castle, DE are:
What cities near New Castle, DE are hiring for Senior Python Developer jobs? Cities near New Castle, DE with the most Senior Python Developer job openings:
Senior Python Developer jobs near you
Sr Manager of Software Engineering

Sr Manager of Software Engineering

JP Morgan Chase

Wilmington, DE

Full-time

Medical, Retirement

Posted 16 days ago

JPMorgan Chase & Co. rating

8.1

Company rating: 8.1 out of 10

Based on 470 frontline employees who took The Breakroom Quiz

46th of 141 rated banks

Job description

When you mentor and advise multiple technical teams and move financial technologies forward, it's a big challenge with big impact. You were made for this. 

As a Senior Manager of Software Engineering at JPMorgan Chase within Corporate Technology - Treasury & CIO (TCIO) Finance Technology team, you will lead and coach multiple engineering teams while shaping the technical strategy for platforms that power internal funding and Net Interest Income (NII). You will anticipate cross-functional dependencies across Finance, Risk, Treasury, and Infrastructure, and your insights will inform budget and technical decisions that advance efficiency, resiliency, and control.

Job responsibilities

  • Provide direction, oversight, and coaching to teams of entry- to mid-level software engineers delivering solutions for internal funding, NII, and related accounting/finance use cases.
  • Manage accountability for decisions impacting team resources, budget, tactical operations, and the execution of processes and procedures across multiple pipelines and services.
  • Ensure successful collaboration across Finance, Risk, Treasury, SRE, and Data Platform stakeholders to deliver secure, scalable, and well-controlled solutions.
  • Identify and mitigate issues to execute the book of work; escalate risks proactively and drive remediation plans.
  • Manage platform strategy and modernization (cloud-first, data-first), including AI enablement for efficiency, anomaly detection, and automation of controls.
  • Champion engineering best practices for big data processing (Databricks, Spark), microservices (Java/Python), API design, CI/CD, observability, and resiliency.
  • Manage logical explanations and finance-grade controls (data lineage, reconciliations, validations) that meet accounting and reporting standards.
  • Create a culture of diversity, opportunity, inclusion, and respect, with emphasis on mentorship, talent development, and thought leadership.

Required qualifications, capabilities, and skills

  • Formal training or certification on software engineering concepts and 5+ years applied experience . In addition, 2 + years of experience leading technologists to manage and solve complex technical items within your domain of expertise 
  • Experience leading multiple teams; ability to guide and coach on achieving goals aligned to strategic initiatives and regulatory timelines.
  • Proven track record hiring, developing, and recognizing engineering talent; strong mentorship and people leadership.
  • Deep understanding of finance and accounting concepts related to internal funding and NII (e.g., accruals, FTP/base rate curves, interest calculation logic, ledger alignment).
  • Practical cloud-native experience, in AWS (compute, storage, networking, security).
  • Proficiency with Databricks/Spark for large-scale data processing; strong coding skills in Python and Java; familiarity with data pipelines and controls.
  • Experience in Computer Science, Engineering, Mathematics, or a related field, with expertise across core technology disciplines (APIs, data, platform engineering).

Preferred qualifications, capabilities, and skills

  • Experience producing high-quality code and design at a senior level; ability to set standards, review designs, and drive technical direction.
  • Background in AI/ML enablement for operational efficiency, quality controls, and anomaly detection in finance data.
  • Familiarity with finance technology operating models, controls, and audit/regulatory expectations; experience coordinating with Finance and Risk stakeholders.
  • Demonstrated success driving platform modernization (cloud migration, data platform evolution) while managing day-to-day inefficiencies and scaling engineering practices.
JPMorganChase, one of the oldest financial institutions, offers innovative financial solutions to millions of consumers, small businesses and many of the world's most prominent corporate, institutional and government clients under the J.P. Morgan and Chase brands. Our history spans over 200 years and today we are a leader in investment banking, consumer and small business banking, commercial banking, financial transaction processing and asset management.

We offer a competitive total rewards package including base salary determined based on the role, experience, skill set and location. Those in eligible roles may receive commission-based pay and/or discretionary incentive compensation, paid in the form of cash and/or forfeitable equity, awarded in recognition of individual achievements and contributions. We also offer a range of benefits and programs to meet employee needs, based on eligibility. These benefits include comprehensive health care coverage, on-site health and wellness centers, a retirement savings plan, backup childcare, tuition reimbursement, mental health support, financial coaching and more. Additional details about total compensation and benefits will be provided during the hiring process. 

We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

JPMorgan Chase & Co. is an Equal Opportunity Employer, including Disability/Veterans

Our professionals in our Corporate Functions cover a diverse range of areas from finance and risk to human resources and marketing. Our corporate teams are an essential part of our company, ensuring that we're setting our businesses, clients, customers and employees up for success.

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